FR3059435A1 - PLATE CONNECTION BOX PROVIDED WITH INPUT AND OUTPUT RAMPS - Google Patents

Abstract

Box for connecting a signal transmission element such as an optical cable, the transmission element being provided with a plurality of unitary elements such as optical fibers, the connection box comprising a connection box provided with a base (7) and a cover, a connection plate (5) having a storage face and a delivery face (25) for the plurality of unit elements, a receiving housing (29) arranged for receiving an external connection socket (21), the connection plate (5) further having an input ramp (69) and an output ramp (71) for the plurality of unit elements, the input ramp ( 69) and the exit ramp (71) being formed in the storage face so as to each have an inclination with respect to an extension plane of the storage face and extending beyond a plane of extension of the distribution face (25).

Description

® FRENCH REPUBLIC

NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY © Publication number:

(to be used only for reproduction orders)

©) National registration number

059 435

61703

COURBEVOIE

©) Int Cl ⁸ : G 02 B 6/44 (2017.01)

PATENT INVENTION APPLICATION

A1

©) Date of filing: 30.11.16. ©) Applicant (s): OMELCOM Liability company ©) Priority: limited - FR. ©) Inventor (s): PIN JEAN-PATRICK and CLERC PATRICE. (43) Date of public availability of the request: 01.06.18 Bulletin 18/22. ©) List of documents cited in the report preliminary research: Refer to end of present booklet (© References to other national documents (73) Holder (s): OMELCOM Limited Liability Company related: tee. ©) Extension request (s): @) Agent (s): CABINET GERMAIN & MAUREAU.

£ 4) CONNECTION BOX WITH TRAY PROVIDED WITH INPUT AND OUTPUT RAMP.

FR 3 059 435 - A1

Connection box for a signal transmission element such as an optical cable, the transmission element being provided with a plurality of unitary elements such as optical fibers, the connection box comprising a connection box provided with a base (7) and a cover, a connection plate (5) having a storage face and a distribution face (25) for the plurality of unit elements, a receiving housing (29) arranged for receiving an external connection socket (21), the connection plate (5) further having an entry ramp (69) and an exit ramp (71) for the plurality of unit elements, the entry ramp ( 69) and the outlet ramp (71) being formed in the storage face so as to each have an inclination relative to a plane of extension of the storage face and extending beyond a plane of extension of the distribution face (25).

i

The present invention relates to a connection box for a signal transmission element such as an optical cable.

This type of connection box is used for the connection of individual elements of the transmission element, such as optical fibers, to external connection sockets arranged to cooperate with complementary sockets.

This type of connection box therefore makes it possible to distribute the optical fibers of an optical cable to several external connection sockets.

Unit elements such as optical fibers must be handled and arranged with care, in particular inside the connection box.

It is therefore necessary to provide a connection box inside which the unitary elements are not bent more than their structure supports it.

By folding it is understood: curved by a radius less than a determined radius of curvature below which a unitary element is damaged.

Connecting the ends of the unit elements to the external connection sockets is also difficult, given the fragility of the unit elements.

Known connection boxes make it possible to comply with these constraints relating to the positioning of the unitary elements.

However, these connection boxes have a complex internal geometry and many parts to meet these constraints, which can cause manufacturing difficulties due to the complexity of the parts constituting the connection box.

The present invention aims to solve all or part of the drawbacks mentioned above.

To this end, the present invention relates to a connection box for a signal transmission element such as an optical cable, the transmission element being provided with a plurality of unitary elements such as optical fibers, the connection box comprising:

a connection box provided with a base and a cover, the base and the cover being arranged to cooperate in a closed position, a connection plate having a storage face and a distribution face for the plurality of unit elements, the connection plate being arranged to be placed in the connection box in the closed position so as to generate an input-output compartment facing the distribution face and a storage compartment facing the storage face, a housing receiving device arranged to receive an external connection socket, the external connection socket being able to be connected to a unitary element or to a connection element to the unitary element, the connection plate further having an input ramp and an outlet ramp for the plurality of unit elements, the inlet ramp and the outlet ramp being provided in the storage face of so as to each have an inclination relative to an extension plane of the storage face and extending beyond an extension plane of the dispensing face.

In other words, the entry ramp allows the passage of unit elements from the entry-exit compartment to the storage compartment and the exit ramp allows the passage of unit elements from the storage compartment to the entry compartment -exit.

The entry ramp and the exit ramp allow one or more unitary elements to pass between the faces of the plate at a determined inclination. Thus, the risk of damage to the unit element or elements is limited in comparison with a passage of the through-opening type formed in the connection plate. The guidance of the unit element (s) is more precise.

In this context, the entry ramp and the exit ramp allow easy passage and without folding of the unitary elements from one face to the other of the connection plate.

This arrangement also facilitates installation since the distribution face is dedicated to the arrangement of the external connection socket (s) and the storage face for the coiling and / or splicing of the unit elements.

According to one aspect of the invention, a part of the connection plate in which the inlet ramp and the outlet ramp are formed is made in one piece, preferably by molding.

This arrangement facilitates the manufacture of the connection plate. The number of parts required to manufacture the connection box is therefore limited, which is an advantage in terms of production.

According to one aspect of the invention, the external connection socket comprises a connection part to a complementary socket, the connection part being formed in the connection box in the closed position so as to open out towards the outside of the box.

The external connection socket is therefore a terminal element of the connection box which allows the connection of an additional socket.

According to one aspect of the invention, the entry ramp and / or the exit ramp are formed along an external contour of the storage face.

This arrangement makes it possible to define the entry ramp and / or the exit ramp so that the transmission element and / or one or more unit elements do not enter or exit tangentially to the external contour.

In addition, this arrangement facilitates the insertion of the transmission element and / or the unit element (s) into the ramps because they are easily accessible.

According to one aspect of the invention, the entry ramp comprises an entry wedge arranged in a passage section of the entry ramp and arranged for maintaining in position at least one unitary element.

This arrangement makes it possible to maintain in position any unitary element extending in the entry ramp. Similarly, the exit ramp includes an exit ramp.

According to one aspect of the invention, the receiving housing for the external connection socket is at least partially formed in the distribution face.

This arrangement facilitates the establishment of the external connection socket once connected to a unitary element or a connecting element to a unitary element.

Indeed, the external connection socket is positioned on the dispensing face and then the corresponding unit element is installed on the dispensing face so as to always have a radius of curvature sufficient not to be folded. The unitary element can finally be arranged on the side of the storage face passing through the outlet ramp.

This arrangement allows rapid installation while requiring few parts for the connection box.

According to one aspect of the invention, the connection box comprises a distribution structure formed in and / or attached to the distribution face, the distribution structure having a positioning guide for an extreme portion of unitary element, the guide positioning comprising at least one guide portion arranged to cooperate with the end portion, the at least one guide portion being provided between the outlet ramp and a connection location between the end portion and the external connection socket, when said socket external connection cooperates with the receiving housing.

This arrangement facilitates the installation of the end portion of the unit element connected to an external connection socket. It thus appears that the end portion is fully guided on its path between the outlet ramp and the location where the external connection socket is arranged thanks to the positioning guide of the distribution structure.

According to one aspect of the invention, the reception housing is arranged to receive a plurality of external connection sockets.

This arrangement allows an easy and compact installation of several sockets in the connection box. Indeed, the fact of defining a face for coiling and splicing - the storage face - and a face for the arrangement of several extreme portions of unit elements and external connection sockets - the distribution face - makes it possible to achieve a compact layout.

The entry ramp and the exit ramp are also arranged for the passage of the transmission element for the entry ramp and of several unitary elements for the exit ramp, which contributes to the compactness and to the limited number of parts of the connection box.

According to one aspect of the invention, the connection box comprises one or more external connection sockets, the external connection socket (s) being attached to the distribution face.

Preferably, the external connection plug (s) are removably attached to the dispensing face. In particular, the connection box comprises a latching structure attached to the dispensing face, the latching structure being able to cooperate in a removable manner with one or more external connection sockets.

The external connection socket (s) can thus be removed from the distribution face to allow easy connection between the external connection socket and the end portion of a corresponding unitary element, and this outside the connection box to have more square.

According to one aspect of the invention, the distribution structure comprises a plurality of positioning guides, each positioning guide being arranged to cooperate with an end portion of a unit element of the plurality of unit elements.

This arrangement allows a simple installation of several external connection sockets since it is possible to guide each extreme portion of unitary element connected in a precise manner.

Thus, the end portions arrive on the distribution face by the outlet ramp and are then aligned or "distributed" so that each end portion arrives in a connection part of the complementary external connection socket.

According to one aspect of the invention, the positioning guides of the plurality of positioning guides comprise at least one common guide portion.

In other words, at least one guide portion is arranged to guide two end portions of unit elements. This arrangement allows optimization of space on the distribution face by partially mutualizing the guide portions for the distribution of the end portions.

According to one aspect of the invention, each connection location between an end portion and an external connection socket is spaced from an adjacent location by the same distance. Preferably, the connection locations belong to a connection alignment axis.

Thus the external connection sockets are aligned which contributes to the compactness of the connection box.

According to one aspect of the invention, the base has an internal face facing the entry-exit compartment in the closed position, the internal face having a projection extending towards the entry-exit compartment, an entry passage in the input-output compartment for the transmission element being formed in a part of the transverse projection to an extension plane of the internal face.

This arrangement simplifies the geometry of the base since a single entry is provided on the internal face for the transmission element. The fact that this passage is transverse relative to the extension plane of the internal face makes it possible to introduce the transmission element into the box substantially parallel to the internal face.

Thus the unit elements of the transmission element are not damaged and the geometry of the base remains simple. According to one aspect of the invention, the base is a single piece, preferably made by molding. This arrangement allows easy and inexpensive manufacture of the base.

According to one aspect of the invention, the connection box comprises an alignment structure formed in an external face of the base and comprising a set of guide channels for the transmission element, said set comprising a guide channel, one of which outlet section is opposite the inlet passage and at least two guide channels each comprising an end section opening onto an external contour of the external face, the set of guide channels being arranged to define at least two routes through the set of channels for a transmission element, each route extending along a trajectory having a radius of curvature greater than a given value.

This arrangement allows the transmission element to enter under the connection box according to several orientations without this necessitating having several entry passages.

Indeed, the alignment structure makes it possible to arrange the box in the desired orientation, regardless of the direction from which the transmission element originates. Indeed, the transmission element is aligned to enter through the entry passage in the entry-exit compartment by the alignment structure.

According to one aspect of the invention, the connection box comprises a deflection ramp attached to the base, the deflection ramp being arranged to cooperate with the signal transmission element and having a guide profile provided with an end portion away from the base.

This arrangement allows passage along a determined path of the signal transmission element from the input-output compartment to the storage compartment in the closed position.

Indeed, the transmission element enters the exit compartment by extending along the internal wall of the base then is offset at a distance from the internal wall by the deflection ramp to then go into the Entrance.

It thus appears that the combined effect of the deflection ramp and the entry ramp makes it possible to move the transmission element away from the base so that it passes into the storage compartment.

Thus in the closed position, the portion of the transmission element included in the input-output compartment is fully guided, which allows by the choice of the curvature of the ramps to define the curvature of the transmission element.

The portion of the transmission element is therefore completely constrained and is not folded, that is to say bent over a radius less than a determined radius below which the transmission element is damaged.

According to one aspect of the invention, the base and the cover are arranged to be arranged in an open position, the connection plate being arranged to cooperate with the base in the open position and to be movable relative to the base between a retracted position in which the dispensing face is arranged so as to generate the inlet-outlet compartment and a deployed position.

This arrangement allows a user to have access to the dispensing face in the deployed position and to have access to the storage face in the retracted position, the cover being in the open position.

The installation of the transmission element and the connection of the unit element or elements to the corresponding sockets can thus be easily carried out in the deployed position.

The coiling and splicing of the unit element (s) can also be easily carried out in the retracted position when the cover is in the open position.

Thus with a minimum of parts, the connection box is very practical for installation since after having made the connections it is enough to pass in the retracted position to realize the coiling and splicing.

The transition to the closed position is also facilitated at this stage since it suffices to have the cover on the base so that the connection box is in the closed position.

According to one aspect of the invention, the connection box also comprises a support for moving the connection plate between the deployed position and the retracted position, the movement being carried out around an opening axis.

This arrangement allows the connection plate to be guided between the retracted position and the deployed position. The transition from the retracted position to the deployed position is thus facilitated.

According to one aspect of the invention, the displacement support is partly formed in or attached to the base and partly formed in or attached to the connection plate. Preferably, the displacement support comprises a hinge. In particular, the hinge comprises two snap-on parts so as to be able to separate the base from the connection plate.

According to one aspect of the invention, the deflection ramp has a side wall portion extending substantially parallel to the opening axis.

In other words, the side wall portion extends parallel or extends obliquely at an angle of less than 15% relative to the opening axis.

This arrangement greatly limits the risk of folding when passing from the retracted position to the deployed position. Indeed the transmission element comprises a portion extending along said portion of the side wall of the deflection ramp.

This portion of the transmission wall is subjected to a torsional stress which is easily absorbed by the transmission element. Thus the unitary elements of the transmission element are not folded when passing from the retracted position to the deployed position.

According to one aspect of the invention, the connection box comprises a coiling and / or splicing structure formed in or attached to the storage face.

This arrangement allows easy storage of the unit elements once they are connected to the corresponding sockets. Indeed, the coiling and / or splicing structure allows easy storage now in position the unit elements against the storage face.

The establishment of the cover in the closed position is thus facilitated, no unitary element comprising a portion extending beyond the coiling structure.

According to one aspect of the invention, the connection box further comprises a device for hooking to a wall and / or to a rail formed in the base.

This arrangement makes it possible to dispense with an attachment attachment piece such as a fixing plate. The number of pieces is thus limited.

According to one aspect of the invention, the attachment device is formed in the external face of the base.

The different non-incompatible aspects defined above can be combined.

The invention will be better understood using the detailed description which is set out below with reference to the appended drawing in which:

FIG. 1 is a perspective view of a connection box for a signal transmission element such as an optical cable;

Figure 2 is a side view of a base of the connection box and a connection plate in the retracted position;

Figure 3 is a side view of the base and the connection plate in the deployed position;

Figure 4 is a front view of the base and the connection plate in the deployed position;

Figure 5 is a perspective view of a distribution face of the connection plate;

Figure 6 is a perspective view of a storage face of the connection plate;

FIG. 7 is a perspective view of a storage compartment for the base:

Figure 8 is a perspective view of an external part of the base.

In the detailed description which follows of the figures defined above, the same elements or the elements fulfilling identical functions may retain the same references so as to simplify the understanding of the invention.

As illustrated in FIG. 1, a connection box 1 comprises a connection box 3 and a connection plate 5.

The connection box 3 comprises a base 7 and a cover 9 arranged to cooperate in a closed position as in FIG. 1. The cover 9 is removable and can be detached from the base 7 in the open position. In Figures 3 and 4, the housing is in the open position and the cover is not shown.

The base 7 can be in one piece and for example be produced by molding.

The connection plate 5 cooperates with the connection box 3. When the connection box 3 is in the open position, the connection plate 5 can be arranged in a retracted position as in FIG. 2 or in a deployed position as in FIG. 3 and 4.

The connection box 1 comprises a displacement support 11 allowing the displacement of the connection plate 5 between the retracted position and the deployed position.

The displacement is a relative rotation of the connection plate 5 and of the base 7 around an opening axis 13.

The displacement support 11 comprises a hinge 15 of which a part 15a is formed in or attached to the base 7 and another part 15b is formed in or attached to the connection plate 5. These two parts 15a, 15b are snap-on, which separates the connection plate 5 from the base 7.

In the closed position, the connection plate 5 is in the retracted position as illustrated in FIG. 2 with the lid 9 in dotted lines. The connection plate 5 separates the interior of the connection box 3 into a storage compartment 17 and a compartment for input-output 19.

ίο

As illustrated in FIG. 1, the connection box 3 also comprises an external connection socket 21 formed in the connection box 1 so as to include a connection part 23 to a complementary socket opening outwards from the connection box 3 in closed position.

As illustrated in FIGS. 4 to 6, the connection plate 5 has a distribution face 25 and an opposite storage face 27. In the closed position, the distribution face 25 faces the inlet-outlet compartment 19 and the storage face 27 faces the storage compartment 17.

The connection box 1 comprises a reception housing 29 for four external connection sockets 21 formed in and / or attached to the distribution face 25. The reception housing 29 comprises a latching structure 31 making it possible to snap the or the external connection sockets 21 in the reception housing 31. Here a single external connection socket 21 is removably received as illustrated in FIG. 4.

The external connection socket 21 comprises a connection part 33 to a unitary element 35 of a transmission element 37 or to a connection element arranged as an intermediate element between the unitary element 35 and the transmission element 37 .

In the example presented the transmission element 37 is an optical cable comprising several unit elements 35 or optical fibers.

As illustrated in FIGS. 4, 7 and 8, the base 7 has an internal face 39 facing the input-output compartment 19 in the closed position and an opposite external face 41.

The base 7 has an entry passage 43 for the transmission element 37 in the entry-exit compartment 19, the transmission element 37 then passing through the storage compartment 17 to be separated into unit elements 35.

Finally, each unitary element 35 connected to an external connection socket 21 passes back into the input-output compartment 19 to a connection location 45.

For the entry of the transmission element 37 into the connection box 3, the base 7 has a projection 47 extending towards the entry-exit compartment 19. The entry passage 43 is formed in a part of the advancement 47 transverse to an extension plane 49 of the internal face 39.

As illustrated in FIG. 8, the connection box 1 comprises an alignment structure 51 for the transmission element 37 formed in the external face 41 of the base 7.

The alignment structure 51 comprises a set of guide channels 53 for the transmission element 37. Said assembly 53 comprises a guide channel 53a, one outlet section of which faces the inlet passage 43 and five guide channels 53b each comprise an end section opening onto an external contour 55 of the external face 41. A breakable cover 57 closes the end sections.

The set of guide channels 53 thus defines five routes for the transmission element 37, each route extending along a trajectory having a radius of curvature greater than a given value.

The connection box 1 also comprises a device for hooking to a wall and / or to a rail 59 formed in the external face 41, said device 59 being arranged to cooperate with fixing studs mounted on said wall or a rail according to minus two directions.

As illustrated in FIG. 7, once entered into the entry-exit compartment 19, the transmission element 37 is guided towards the storage compartment 17.

To do this, the connection box 1 comprises a fixing support 61 arranged for fixing the transmission element 37 to the base 7 by a fixing tape.

The connection box 1 further comprises a deflection ramp 63 attached to the internal face 39. The deflection ramp 63 has a guide profile comprising an end portion 65 at a distance from the internal surface 39 and a side wall portion 67 s 'extending substantially parallel to the opening axis 13.

As illustrated in FIGS. 5 and 6, the connection box 1 comprises an inlet ramp 69 in the storage compartment 17 and an outlet ramp 71 for the return to the inlet-outlet compartment 19.

The inlet ramp 69 and the outlet ramp 71 each have an inclination relative to an extension plane 73 of the storage face 27 and are each formed in the storage face 27 so as to extend beyond an extension plan 75 of the distribution face 25.

The part of the connection plate in which the ramps 69 are provided? 71 can be produced in one piece, for example by molding.

The ramps 69, 71 are formed along an external contour 77 of the storage face 27 so that the passages formed by the ramps 69, 71 are tangential to said contour 77.

The entry ramp 69 comprises an entry wedge 79 disposed in a passage section of the entry ramp 69 and designed to hold several unitary elements 35 in position.

This arrangement makes it possible to maintain in position any unit element 35 extending in the inlet ramp 69. The separation of the transmission element 37 into unit elements 35 is therefore carried out upstream of the inlet wedge 79, for example in the entrance ramp 69.

The outlet ramp 71 comprises an outlet wedge 81 disposed in a passage section of the outlet ramp 71 and arranged to hold several unitary elements 35 in position.

As illustrated in FIG. 6, the connection box 1 comprises a coiling and / or splicing structure 83 formed in and / or attached to the storage face 27.

Said structure 83 makes it possible to accommodate in the connection box 3 in the closed position up to four portions of unit elements 35 connected to four corresponding external connection sockets 21.

As illustrated in FIGS. 4 and 5, the connection box 1 comprises a distribution structure 85 attached to and / or formed in the distribution face 25.

The distribution structure 85 comprises positioning guides 87, each positioning guide 87 being arranged to guide an end portion of a unitary element 35 towards the connection part 33 of the corresponding external connection socket 21.

Each positioning guide 87 comprises at least one guide portion 89 arranged to cooperate with the end portion of the corresponding unitary element 35.

It should be noted that the same guide portion 89 may belong to several positioning guides 87 in order to limit the total number of guide portions 89.

A numbering from 1 to 4 and an indication of direction like an arrow have been marked on the dispensing face 27 to allow the user to distinguish the different positioning guides 87.

Each positioning guide 87 is formed between the outlet ramp 71 and a connection location 45 to the corresponding connection part 33. The four locations 45 are arranged so as to be aligned and spaced from a contiguous location 45 by the same distance.

As illustrated in FIG. 4, when at a dedicated location 45 no external connection socket 21 is disposed, a closure 91 can be added to close the connection box 3. This closure 91 can be breakable and / or removable.

The connection box 1 presented above offers several advantages. First of all, the base 7 makes it possible to fix the box 1 easily to a support according to different orientations.

The transmission element 37 can be introduced under the base 7 according to five different inlets all leading to the inlet passage 43 in the housing 3.

During installation, the arrangement in the deployed position makes it possible to draw a sufficient length of the transmission element 37 intended to be inside the box 1. The extreme portion of the transmission element 37 can then be separated into unit elements 35 and these connected to the corresponding external connection sockets 21.

Once this connection has been made, the unitary elements 35 can be arranged in the distribution structure 85 and the external connection sockets 21 arranged in the reception housing 29.

By passing into the retracted position, the transmission element 37 and the unitary elements 35 can be arranged in the inlet ramp 69 and the outlet ramp 71.

The end of the installation is easy since in the retracted position, the space taken by the base 7 and the connection plate 5 is limited. The user has sufficient space to perform the splicing of the unit elements 35 and the coiling so that the connection box 3 can be closed without hindrance.

The deflection ramp 63 makes it possible, during the passages between the retracted position and the deployed position, not to bend the transmission element 37. Indeed, the transmission element 37 is subjected to a torsional force in its extending portion along the side wall portion 67 substantially parallel to the opening axis 13. This torsion is easily supported by the transmission element 37: it is absorbed without the element 37 being bent.

Thus, the connection box 1 makes it possible, with a limited number of parts, to connect and store the unit elements 35 separately. In fact, the connection is made in the deployed position and the storage of the unit elements 35 in the retracted position.

Thus the external connection sockets 21 and the end portions of unit elements 35 are protected in the retracted position in the input-output compartment 19. The use of the connection box 1 is therefore simple, which allows installation or addition of an external fast connection socket 21.

As it goes without saying, the invention is not limited to the single embodiment described above by way of example, on the contrary it embraces all the variant embodiments thereof.

Claims (14)

1. Connection box (1) of a transmission element (37) of a signal such as an optical cable, the transmission element (37) being provided with a plurality of unit elements (35) such than optical fibers, the connection box (1) comprising: a connection box (3) provided with a base (7) and a cover (9), the base (7) and the cover (9) being arranged to cooperate in a closed position, a connection plate (5 ) having a storage face (27) and a distribution face (25) for the plurality of unit elements (35), the connection plate (5) being arranged to be disposed in the connection box (3) in the closed position so as to generate an input-output compartment (19) facing the distribution face (25) and a storage compartment (17) facing the storage face (27), a receiving housing (29) arranged to receive an external connection socket (21), the external connection socket (21) being able to be connected to a unitary element (35) or to a connection element to the unitary element (35), the tray connection (5) further comprising an inlet ramp (69) and an outlet ramp (71) for the plurality of elements unit elements (35), the inlet ramp (69) and the outlet ramp (71) being formed in the storage face (27) so as to each have an inclination relative to an extension plane (73) of the storage face (27) and extending beyond an extension plane (75) of the distribution face (25). 2. Connection box (1) according to claim 1, in which the receiving housing (29) for the external connection socket (21) is at least partially formed in the distribution face (25). 3. Junction box (1) according to one of claims 1 or 2, comprising a distribution structure (85) formed in and / or attached to the distribution face (25), the distribution structure (85 having a guide positioning (87) for an end portion of a unit element (35), the positioning guide (87) comprising at least one guide portion (89) arranged to cooperate with the end portion, the at least one guide portion (89) being formed between the outlet ramp (71) and a connection location (45) between the end portion and the external connection socket (21), when said external connection socket (21) cooperates with the reception housing (29). 4. Junction box (1) according to one of claims 1 to 3, wherein the receiving housing (29) is arranged to receive a plurality of external connection sockets (21). 5. Junction box (1) according to claim 4 in combination with claim 3, wherein the distribution structure (85) comprises a plurality of positioning guides (87), each positioning guide (87) being arranged to cooperate with an end portion of a unit element (35) of the plurality of unit elements (35). 6. Junction box (1) according to claim 5, wherein the positioning guides (87) of the plurality of positioning guides (87) comprise at least one common guide portion (89). 7. junction box (1) according to one of claims 1 to 6, wherein the base (7) has an internal face (39) facing the input-output compartment (19) in the closed position, the face internal (39) having a projection (47) extending towards the entry-exit compartment (19), an entry passage (43) in the entry-exit compartment (19) for the transmission element (37) being formed in a part of the projection (47) transverse to an extension plane (49) of the internal face (39). 8. Junction box (1) according to claim 7, comprising an alignment structure (51) formed in an external face (41) of the base (7) and comprising a set of guide channels (53) for the transmission element (37), said assembly (53) comprising a guide channel (53a), one outlet section of which faces the inlet passage (43) and at least two guide channels (53b) each comprising a section end opening onto an external contour (55) of the external face (41), the set of guide channels (53) being arranged to define at least two routes through the set of channels (53) for a transmission element (37), each route extending along a trajectory having a radius of curvature greater than a given value. 9. Junction box (1) according to one of claims 1 to 8, comprising a deflection ramp (63) attached to the base (7), the deflection ramp (63) being arranged to cooperate with the element of signal transmission (37) and having a guide profile provided with an end part (65) spaced from the base (7). 10. Connection box (1) according to claim 9, in which the base (7) and the cover (9) are arranged to be arranged in an open position, the connection plate (5) being arranged to cooperate with the base ( 7) in the open position and be movable relative to the base (7) between a retracted position in which the dispensing face (25) is arranged so as to generate the input-output compartment (19) and a deployed position. 11. Junction box (1) according to claim 10, further comprising a displacement support (11) of the connection plate (5) between the deployed position and the retracted position, the displacement being carried out around an axis of opening (13). 12. Connection box (1) according to claim 11 wherein the deflection ramp (63) has a side wall portion (67) extending substantially parallel to the opening axis (13). 13. Junction box (1) according to one of claims 1 to 12, comprising a coiling and / or splicing structure (83) formed in or attached to the storage face (27). 14. Junction box (1) according to one of claims 1 to 13, further comprising a hooking device (59) to a wall and / or to a rail formed in the base (7). 2/4